/*----------------------------------------------------------------------------
 * Copyright (c) <2013-2019>, <Huawei Technologies Co., Ltd>
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *---------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
 * Notice of Export Control Law
 * ===============================================
 * Huawei LiteOS may be subject to applicable export control laws and regulations, which might
 * include those applicable to Huawei LiteOS of U.S. and the country in which you are located.
 * Import, export and usage of Huawei LiteOS in any manner by you shall be in compliance with such
 * applicable export control laws and regulations.
 *---------------------------------------------------------------------------*/
#include "los_magickey.h"
#ifdef LOSCFG_ENABLE_MAGICKEY

#define MAGIC_KEY_NUM 5

static void osMagicHelp(void);
static void osMagicTaskshow(void);
static void osMagicPanic(void);
static void osMagicMemcheck(void);

static MagicKeyOp g_MagicMemcheckOp = {
    .OpHandler = osMagicMemcheck,
    .HelpMsg = "Check system memory(ctrl+e) ",
    .MagicKey = 0x05,   /*ctrl + e*/
};

static MagicKeyOp g_MagicPanicOp = {
    .OpHandler = osMagicPanic,
    .HelpMsg = "System panic(ctrl+p) ",
    .MagicKey = 0x10,   /*ctrl + p*/
};

static MagicKeyOp g_MagicTaskshowOp = {
    .OpHandler = osMagicTaskshow,
    .HelpMsg = "Show task information(ctrl+t) ",
    .MagicKey = 0x14,   /*ctrl + t*/
};

static MagicKeyOp g_MagicHelpOp = {
    .OpHandler = osMagicHelp,
    .HelpMsg = "Show all magic op key(ctrl+z) ",
    .MagicKey = 0x1a,   /*ctrl + z*/
};

/*NOTICE:Suggest don't use
    ctrl+h/backspace=0x8,
    ctrl+i/tab=0x9,
    ctrl+m/enter=0xd,
    ctrl+n/shift out=0xe,
    ctrl+o/shift in=0xf,
    ctrl+[/esc=0x1b,
    ctrl+] used for telnet commond mode;
*/
static MagicKeyOp *g_MagicOpTable[MAGIC_KEY_NUM] = {
    &g_MagicMemcheckOp,         /*ctrl + e*/
    &g_MagicPanicOp,                /*ctrl + p*/
    &g_MagicTaskshowOp,         /*ctrl + t*/
    &g_MagicHelpOp,                 /*ctrl + z*/
    NULL,                                  /*rserved*/
};

static void osMagicHelp(void)
{
    int i = 0;
    PRINTK("HELP: ");
    for (i = 0; g_MagicOpTable[i] != NULL; ++i)
    {
           PRINTK("%s ",g_MagicOpTable[i]->HelpMsg);
    }
    PRINTK("\n");
    return ;
}

extern UINT32 osShellCmdDumpTask(INT32 argc, CHAR **argv);
static void osMagicTaskshow(void)
{
    (void)osShellCmdDumpTask(0, NULL);
    return ;
}

static void osMagicPanic(void)
{
    LOS_Panic("Magic key :\n");
    return ;
}

static void osMagicMemcheck(void)
{
    if (LOS_OK == LOS_MemIntegrityCheck(m_aucSysMem1))
    {
        PRINTK("system memcheck over, all passed!\n");
    }
    return ;
}
#endif

int CheckMagicKey(char key)
{
#ifdef LOSCFG_ENABLE_MAGICKEY
    int i = 0;
    static UINT32 MagicKeySwitch  = 0;
    if (key == 0x12) /* ctrl + r */
    {
        MagicKeySwitch  =  ~MagicKeySwitch;
        if (MagicKeySwitch != 0)
        {
            PRINTK("Magic key on\n");
        }
        else
        {
            PRINTK("Magic key off\n");
        }
        return 1;
    }
    if (MagicKeySwitch != 0)
    {
        for (i = 0; g_MagicOpTable[i] != NULL; ++i)
        {
            if (key == g_MagicOpTable[i]->MagicKey)
            {
                (g_MagicOpTable[i])->OpHandler();
                return 1;
            }
        }
    }
#endif
    return 0;
}